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Cheap flights from Phoenix Sky Harbor Intl Airport to Denver from £46

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Denver Intl are usually found in February or January, booked 62 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Sky Harbor Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 October 2025.

Round-trip from

£108

One-way from

£44

Popular in

June

Cheapest in

February

Average price

£115

Good one-way deal

£85 or less
Alaska Airlines
  • Alaska Airlines
  • 6/1-11/1
  • 2 total stops
  • 30h 22m total
  • Phoenix to Denver
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Frontier
  • Frontier
  • 2/3
  • Nonstop
  • 1h 55m total
  • Phoenix to Denver
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Highest demand for flights based on searches. 13% potential increase in price (£15 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Denver Intl.
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Find flight deals from Sky Harbor Intl to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Sky Harbor Intl to Denver
Explore the most affordable flight options available from Sky Harbor Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.

Thu 11/1219:30PHX - DEN
Nonstop1h 52mUnited Airlines
Tue 16/1219:15DEN - PHX
Nonstop2h 01mUnited Airlines
Deal found 29/10£112
Mon 22/1214:42PHX - DEN
Nonstop1h 56mUnited Airlines
Wed 31/1213:25DEN - PHX
Nonstop1h 58mUnited Airlines
Deal found 28/10£119
Sat 22/1115:48PHX - DEN
1 stop8h 11mAlaska Airlines
Tue 2/1218:59DEN - PHX
1 stop5h 00mAlaska Airlines
Deal found 29/10£128
Thu 4/1209:50PHX - DEN
1 stop4h 45mSouthwest
Mon 8/1208:00DEN - PHX
1 stop3h 25mSouthwest
Deal found 30/10£131
Fri 5/1213:23PHX - DEN
1 stop10h 36mAlaska Airlines
Sun 7/1206:00DEN - PHX
1 stop7h 42mAlaska Airlines
Deal found 28/10£133
Wed 17/1210:55PHX - DEN
1 stop4h 03mDelta
Tue 30/1205:30DEN - PHX
1 stop4h 32mDelta
Deal found 29/10£134
Mon 29/1216:41PHX - DEN
1 stop7h 18mAlaska Airlines
Thu 8/108:04DEN - PHX
1 stop6h 59mAlaska Airlines
Deal found 31/10£138
Thu 4/1210:45PHX - DEN
1 stop7h 47mDelta
Sun 7/1219:28DEN - PHX
1 stop5h 04mDelta
Deal found 28/10£142
Wed 17/1215:55PHX - DEN
1 stop8h 04mAlaska Airlines
Fri 19/1218:48DEN - PHX
1 stop5h 05mAlaska Airlines
Deal found 31/10£143
Mon 24/1107:00PHX - DEN
1 stop4h 07mDelta
Mon 24/1119:28DEN - PHX
1 stop4h 59mDelta
Deal found 29/10£150
Wed 24/1212:42PHX - DEN
1 stop6h 36mAlaska Airlines
Thu 25/1218:48DEN - PHX
1 stop25h 06mAlaska Airlines
Deal found 30/10£151
Sat 22/1115:48PHX - DEN
1 stop8h 11mAlaska Airlines
Fri 28/1106:00DEN - PHX
1 stop9h 02mAlaska Airlines
Deal found 30/10£152

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sky Harbor Intl to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Denver that are best for you.

Fly from

Sky Harbor Intl

Fly to

Denver

Route

Depart

Return

Price

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 5/12

13:23-23:59

1 stop10h 36m

Denver Intl

Sun 7/12

06:00-13:42

1 stop7h 42m

£133

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 25/12

11:03-15:13

1 stop4h 10m

Denver Intl

Tue 30/12

05:30-10:02

1 stop4h 32m

£134

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 17/1

14:20-18:40

1 stop4h 20m

Denver Intl

Wed 21/1

12:46-17:13

1 stop4h 27m

£134

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 20/1

15:45-23:58

1 stop8h 13m

Denver Intl

Fri 30/1

19:39-14:00

1 stop18h 21m

£134

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 18/12

14:18-18:58

1 stop4h 40m

Denver Intl

Tue 30/12

05:30-10:02

1 stop4h 32m

£134

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 20/1

15:45-23:58

1 stop8h 13m

Denver Intl

Sat 31/1

08:04-14:00

1 stop5h 56m

£134

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 17/12

10:55-14:58

1 stop4h 03m

Denver Intl

Tue 30/12

05:30-10:02

1 stop4h 32m

£134

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 18/12

14:18-18:58

1 stop4h 40m

Denver Intl

Thu 25/12

06:45-13:33

1 stop6h 48m

£134

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 19/11

06:00-11:34

1 stop5h 34m

Denver Intl

Mon 24/11

19:20-09:42

1 stop14h 22m

£138

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 4/12

10:45-18:32

1 stop7h 47m

Denver Intl

Sun 7/12

19:28-00:32

1 stop5h 04m

£142

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 22 results
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Best time to book a flight from Sky Harbor Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Sky Harbor Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Denver

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Use this chart to determine the optimal time to book a return flight from Sky Harbor Intl to Denver. Price data was last updated on 24 October 2025.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Denver, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £41). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £77). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to DEN?

Find hourly flight availability from Sky Harbor Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 91% on flights from Phoenix Sky Harbor Intl Airport to Denver by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Phoenix Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 12 inbound flights from Phoenix Sky Harbor Intl per day. 0 airlines have flights to Denver Intl from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Denver?

    There are many flights that can get you from Phoenix Sky Harbor Intl Airport to Denver in 4h 10m. Fly via Southwest, Alaska Airlines, or Delta to get the fastest option. The distance between Phoenix Sky Harbor Intl Airport and Denver is about 601 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Denver one-way?

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as £54. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from Phoenix Sky Harbor Intl Airport to Denver for a low price.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Denver?

    Consider Envoy Air (100%), Frontier (81%) or American Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Denver.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Denver?

    While on average a flight from Phoenix Sky Harbor Intl Airport to Denver is generally £356, our data shows the cheapest flight currently is £67. When looking at the most popular route, (Phoenix Sky Harbor Intl - Denver Intl), you can expect to pay £222 for that flight.

  • Can I find deals for flights from Sky Harbor Intl to Denver that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Denver.

  • Can I find deals for business class flights from Sky Harbor Intl to Denver?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

    Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £41). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £77). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Can Cheapflights find flights from Sky Harbor Intl to Denver with no change fees?

Yes, we can. To see specific flights from Sky Harbor Intl to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sky Harbor Intl to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Sky Harbor Intl today and book when prices fit your budget.

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